Merge branch 'conjugate-gradient' into 'develop'

Add support for ConjugateGradient and other sparse solvers

See merge request educelab/OpenABF!17

Merge branch 'patch-v1.1.1' into 'develop'

Fix missing includes

See merge request educelab/OpenABF!12

Merge branch 'version-1.1' into 'develop'

Version bump 1.1

See merge request educelab/OpenABF!11

Merge branch 'version-1-fixes' into 'develop'

Version 1.0 release

See merge request educelab/OpenABF!3

Merge branch 'bootstrap' into 'develop'

Bootstrap repository

See merge request csparker247/openabf!2